Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings


Bearing No. 47T604727A

Specification data (main dimensions, etc.)

d(mm)300
D(mm)470
T(mm)270
W(mm)270
r(min.)(mm)4
r1(min.)(mm)5
Basic load ratings : Cr(kN)3770
Basic load ratings : C0r(kN)6440
Fatigue load limit : Cu(kN)669
Axial load factors : Y2(mm)1.68
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40

Mounting dimensions,weight (reference)

da(min.)(mm)338 mm
Da(max.)(mm)452 mm
Da(max.)(mm)426 mm
S(min.)(mm)8 mm
ra(max.)(mm)3 mm
rb(max.)(mm)4 mm
Axial load factors : Y2(mm)1.68 mm
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40
Mass(Refer.)(kg)165 kg
JTEKT

2026/07/19